In terms of precipitation, rainfall in Rio de Janeiro Santos Dumont Airport ranges from 1.6 - 5.1 inches per month. January is typically the wettest month, when rainfall can reach 5.1 in. July is typically the driest time to visit Rio de Janeiro Santos Dumont Airport when rainfall is around 1.6 in.

If weather is an important factor for your trip to Rio de Janeiro Santos Dumont Airport, use this chart to help with planning. For those seeking warmer temperatures, February is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 69.8 F).

What are the most popular routes from Maryland to Rio de Janeiro Santos Dumont Airport?

The most popular route from Maryland to Rio de Janeiro Santos Dumont Airport is Washington, D.C. Dulles Intl - Rio de Janeiro Santos Dumont. You may also consider Washington, D.C. Reagan-National - Rio de Janeiro Santos Dumont or Baltimore/Washington - Rio de Janeiro Santos Dumont.

How far in advance should I book a flight from Maryland to Rio de Janeiro Santos Dumont Airport?

Find a great deal and save up to 127% by booking at least 56 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Maryland to Rio de Janeiro Santos Dumont Airport within the next two weeks, with the cheapest ticket starting at $525.

What is the cheapest month to fly from Maryland to Rio de Janeiro Santos Dumont Airport?

May is one of the best times of the year to fly to Rio de Janeiro Santos Dumont Airport from Maryland. Prices for May average $711 per person but you can even find prices for as low as $318. The most expensive prices can be found in the month of December. Opting for a May flight can save you 38% on your journey compared to booking in December

What is the cheapest time of day to fly from MD to SDU?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Maryland to Rio de Janeiro Santos Dumont Airport as you normally would.

Can I find deals for flights from Maryland to Santos Dumont that include hotel bookings?

Yes. In addition to deals on Maryland to Santos Dumont flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Maryland to Santos Dumont?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Maryland to Santos Dumont.

Can I find deals for business class flights from Maryland to Santos Dumont?

Yes. Cheapflights offers flight deals from Maryland to Santos Dumont by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$285+ Cheap Flights from Maryland to Rio de Janeiro Santos Dumont Airport, Brazil

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Cheap flight deals from Maryland to Santos Dumont

Round-trip from	$611 (Mytrip)
One-way from	$285 (Delta)
Popular in	December
Cheapest in	May
Average price	$666

From Maryland to Rio de Janeiro Santos Dumont

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One-way flight from Maryland to Rio de Janeiro Santos Dumont

Search Deals

Highest demand for flights based on searches. 10% potential increase in price ($79 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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Find flight deals from Maryland to Santos Dumont

Cheapest flights from Maryland to Santos Dumont
Explore the most affordable flight options available from Maryland to Santos Dumont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2025.

Sat 9/68:16 pmBWI - SDU

2 stops25h 09mMultiple Airlines

Sat 9/1311:25 amSDU - BWI

3 stops33h 22mMultiple Airlines

Deal found 8/16

$611

Fri 9/55:46 pmBWI - SDU

2 stops27h 39mMultiple Airlines

Tue 9/96:50 pmSDU - BWI

2 stops20h 57mMultiple Airlines

Deal found 8/15

$612

Mon 10/204:00 pmDCA - SDU

2 stops18h 05mLATAM Airlines

Sun 11/28:05 pmSDU - DCA

2 stops17h 25mLATAM Airlines

Deal found 8/15

$614

Thu 11/66:00 amDCA - SDU

2 stops30h 20mAir Canada

Fri 11/1411:25 amSDU - DCA

2 stops36h 31mAir Canada

Deal found 8/15

$623

Thu 11/69:45 amIAD - SDU

2 stops26h 35mAir Canada

Fri 11/1411:25 amSDU - IAD

2 stops35h 34mAir Canada

Deal found 8/15

$623

Tue 9/99:35 amIAD - SDU

2 stops27h 45mAir Canada

Tue 9/1611:25 amSDU - IAD

2 stops27h 13mAir Canada

Deal found 8/16

$629

Tue 9/307:49 pmBWI - SDU

2 stops25h 36mMultiple Airlines

Tue 10/75:25 pmSDU - BWI

2 stops18h 36mMultiple Airlines

Deal found 8/16

$651

Thu 10/167:00 pmBWI - SDU

2 stops26h 25mMultiple Airlines

Thu 10/238:20 amSDU - BWI

3 stops40h 15mMultiple Airlines

Deal found 8/16

$659

Sun 9/147:49 pmBWI - SDU

2 stops25h 36mMultiple Airlines

Mon 9/225:25 pmSDU - BWI

2 stops22h 22mMultiple Airlines

Deal found 8/15

$662

Thu 10/27:49 pmBWI - SDU

2 stops25h 36mMultiple Airlines

Tue 10/75:25 pmSDU - BWI

2 stops18h 36mMultiple Airlines

Deal found 8/17

$666

Sat 8/237:54 pmBWI - SDU

2 stops25h 31mMultiple Airlines

Sat 9/1311:25 amSDU - BWI

3 stops33h 22mMultiple Airlines

Deal found 8/16

$678

Mon 10/69:55 pmPHL - SDU

2 stops23h 30mMultiple Airlines

Mon 10/208:20 amSDU - PHL

3 stops29h 33mMultiple Airlines

Deal found 8/15

$679

Best flights from Maryland to Santos Dumont
Discover carefully curated flight deals from Maryland to Santos Dumont that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 17, 2025.

Sat 9/68:16 pmBWI - SDU

2 stops25h 09mMultiple Airlines

Sat 9/1311:25 amSDU - BWI

3 stops33h 22mMultiple Airlines

Deal found 8/16

$611

Mon 10/204:00 pmDCA - SDU

2 stops18h 05mLATAM Airlines

Sun 11/28:05 pmSDU - DCA

2 stops17h 25mLATAM Airlines

Deal found 8/15

$614

Thu 11/66:00 amDCA - SDU

2 stops30h 20mAir Canada

Fri 11/1411:25 amSDU - DCA

2 stops36h 31mAir Canada

Deal found 8/15

$623

Fri 9/55:46 pmBWI - SDU

2 stops27h 39mMultiple Airlines

Tue 9/96:50 pmSDU - BWI

2 stops20h 57mMultiple Airlines

Deal found 8/15

$612

Thu 11/69:45 amIAD - SDU

2 stops26h 35mAir Canada

Fri 11/1411:25 amSDU - IAD

2 stops35h 34mAir Canada

Deal found 8/15

$623

Wed 8/272:59 pmDCA - SDU

2 stops17h 36mLATAM Airlines

Tue 9/28:20 pmSDU - DCA

2 stops18h 44mLATAM Airlines

Deal found 8/15

$682

Wed 9/175:37 pmIAD - SDU

2 stops19h 43mAir Canada

Wed 9/2411:25 amSDU - IAD

2 stops24h 48mAir Canada

Deal found 8/14

$623

Tue 9/307:49 pmBWI - SDU

2 stops25h 36mMultiple Airlines

Tue 10/73:15 pmSDU - BWI

2 stops20h 46mMultiple Airlines

Deal found 8/16

$651

Thu 10/162:40 pmDCA - SDU

2 stops17h 55mLATAM Airlines

Thu 10/232:40 pmSDU - DCA

2 stops24h 05mLATAM Airlines

Deal found 8/16

$682

Tue 9/99:35 amIAD - SDU

2 stops27h 45mAir Canada

Tue 9/1611:25 amSDU - IAD

2 stops27h 13mAir Canada

Deal found 8/16

$629

Thu 10/167:00 pmBWI - SDU

2 stops26h 25mMultiple Airlines

Thu 10/238:20 amSDU - BWI

3 stops40h 15mMultiple Airlines

Deal found 8/16

$659

Fri 9/55:00 pmDCA - SDU

2 stops19h 55mLATAM Airlines

Tue 9/95:05 pmSDU - DCA

2 stops21h 59mLATAM Airlines

Deal found 8/15

$687

Last-minute flights from Maryland to Santos Dumont
Discover last-minute flight deals from Maryland to Santos Dumont. Data last updated August 17, 2025 and is based on user searches.

Fri 8/225:55 pmDCA - SDU

2 stops15h 45mGOL

Sun 8/316:10 amSDU - DCA

2 stops17h 54mGOL

Deal found 8/16

$1,695

Sat 8/237:54 pmBWI - SDU

2 stops25h 31mMultiple Airlines

Sat 9/1311:25 amSDU - BWI

3 stops33h 22mMultiple Airlines

Deal found 8/16

$678

Sat 8/232:59 pmDCA - SDU

2 stops21h 36mLATAM Airlines

Sat 9/132:20 pmSDU - DCA

2 stops24h 40mLATAM Airlines

Deal found 8/16

$720

Mon 8/252:59 pmDCA - SDU

2 stops17h 36mLATAM Airlines

Thu 9/48:20 pmSDU - DCA

2 stops16h 00mLATAM Airlines

Deal found 8/15

$895

Mon 8/2512:13 pmIAD - SDU

2 stops20h 22mLATAM Airlines

Thu 9/48:20 pmSDU - IAD

2 stops16h 42mLATAM Airlines

Deal found 8/15

$981

Mon 8/256:59 amDCA - SDU

2 stops30h 21mAir Canada

Thu 9/411:25 amSDU - DCA

2 stops23h 55mAir Canada

Deal found 8/17

$1,294

Mon 8/252:25 pmIAD - SDU

2 stops22h 55mAir Canada

Thu 9/411:25 amSDU - IAD

2 stops29h 53mAir Canada

Deal found 8/16

$1,344

Mon 8/255:00 pmPHL - SDU

2 stops16h 40mGOL

Mon 9/18:30 pmSDU - PHL

2 stops27h 15mGOL

Deal found 8/16

$1,417

Wed 8/272:59 pmDCA - SDU

2 stops17h 36mLATAM Airlines

Tue 9/28:20 pmSDU - DCA

2 stops18h 44mLATAM Airlines

Deal found 8/15

$682

Wed 8/2712:49 pmBWI - SDU

2 stops23h 11mMultiple Airlines

Tue 9/27:45 amSDU - BWI

3 stops32h 01mMultiple Airlines

Deal found 8/15

$697

Wed 8/279:35 amIAD - SDU

2 stops27h 45mMultiple Airlines

Tue 9/25:40 pmSDU - IAD

2 stops19h 22mMultiple Airlines

Deal found 8/15

$912

Wed 8/276:25 pmBWI - SDU

2 stops20h 55mLATAM Airlines

Tue 9/28:20 pmSDU - BWI

2 stops17h 10mLATAM Airlines

Deal found 8/15

$1,926

One-way flights from Maryland to Santos Dumont
Search for one-way flight options from Maryland to Santos Dumont. Find affordable one-way fares based on user searches. Data last updated August 17, 2025.

Wed 10/82:40 pmDCA - SDU

2 stops17h 55mDelta

Deal found 8/17

$285

Tue 10/712:09 pmIAD - SDU

2 stops20h 26mDelta

Deal found 8/14

$285

Mon 11/105:00 pmDCA - SDU

2 stops21h 00mLATAM Airlines

Deal found 8/15

$291

Mon 11/105:25 pmIAD - SDU

2 stops20h 35mLATAM Airlines

Deal found 8/15

$291

Mon 9/224:34 pmIAD - SDU

3 stops39h 41mMultiple Airlines

Deal found 8/16

$293

Tue 10/75:00 pmDCA - SDU

2 stops15h 35mLATAM Airlines

Deal found 8/16

$295

Tue 10/712:09 pmIAD - SDU

2 stops20h 26mLATAM Airlines

Deal found 8/16

$295

Tue 10/75:50 pmBWI - SDU

2 stops27h 35mMultiple Airlines

Deal found 8/14

$297

Wed 10/87:59 pmIAD - SDU

2 stops40h 26mDelta

Deal found 8/14

$297

Sun 11/91:55 pmDCA - SDU

2 stops41h 40mDelta

Deal found 8/17

$299

Sun 10/125:00 pmDCA - SDU

2 stops28h 20mLATAM Airlines

Deal found 8/14

$300

Sun 10/123:33 pmIAD - SDU

2 stops29h 22mLATAM Airlines

Deal found 8/14

$300

Cheapflights Fare Finder

Use the filters below to find and compare flights from Maryland to Rio de Janeiro Santos Dumont Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreRio de Janeiro

BWI - SDU

BWISDU

Baltimore/Washington

Sat 9/6

8:16 pm-10:25 pm

2 stops25h 09m

Rio de Janeiro Santos Dumont

Sat 9/13

11:25 am-7:47 pm

3 stops33h 22m

$611

BaltimoreRio de Janeiro

BWI - SDU

BWISDU

Baltimore/Washington

Fri 9/5

5:46 pm-10:25 pm

2 stops27h 39m

Rio de Janeiro Santos Dumont

Tue 9/9

6:50 pm-2:47 pm

2 stops20h 57m

$612

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Mon 10/20

4:00 pm-11:05 am

2 stops18h 05m

Rio de Janeiro Santos Dumont

Sun 11/2

8:05 pm-11:30 am

2 stops17h 25m

$614

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Thu 11/6

6:00 am-2:20 pm

2 stops30h 20m

Rio de Janeiro Santos Dumont

Fri 11/14

11:25 am-9:56 pm

2 stops36h 31m

$623

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Thu 11/6

9:45 am-2:20 pm

2 stops26h 35m

Rio de Janeiro Santos Dumont

Fri 11/14

11:25 am-8:59 pm

2 stops35h 34m

$623

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Wed 9/17

5:37 pm-2:20 pm

2 stops19h 43m

Rio de Janeiro Santos Dumont

Wed 9/24

11:25 am-11:13 am

2 stops24h 48m

$623

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Tue 9/9

9:35 am-2:20 pm

2 stops27h 45m

Rio de Janeiro Santos Dumont

Tue 9/16

11:25 am-1:38 pm

2 stops27h 13m

$629

BaltimoreRio de Janeiro

BWI - SDU

BWISDU

Baltimore/Washington

Tue 9/30

7:49 pm-10:25 pm

2 stops25h 36m

Rio de Janeiro Santos Dumont

Tue 10/7

3:15 pm-11:01 am

2 stops20h 46m

$651

BaltimoreRio de Janeiro

BWI - SDU

BWISDU

Baltimore/Washington

Thu 10/16

7:00 pm-10:25 pm

2 stops26h 25m

Rio de Janeiro Santos Dumont

Thu 10/23

8:20 am-11:35 pm

3 stops40h 15m

$659

BaltimoreRio de Janeiro

BWI - SDU

BWISDU

Baltimore/Washington

Sun 9/14

7:49 pm-10:25 pm

2 stops25h 36m

Rio de Janeiro Santos Dumont

Mon 9/22

5:25 pm-2:47 pm

2 stops22h 22m

$662

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 60 results

...

Best time to book a flight from Maryland to Santos Dumont

Have a flexible travel schedule? Discover the best time to fly to Santos Dumont from Maryland with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Maryland to Rio de Janeiro Santos Dumont Airport

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Related info for your journey

What are the most popular routes from Maryland to Rio de Janeiro Santos Dumont Airport?
The most popular route from Maryland to Rio de Janeiro Santos Dumont Airport is Washington, D.C. Dulles Intl - Rio de Janeiro Santos Dumont. You may also consider Washington, D.C. Reagan-National - Rio de Janeiro Santos Dumont or Baltimore/Washington - Rio de Janeiro Santos Dumont.
Can I find deals for flights from Maryland to Santos Dumont that include hotel bookings?
Yes. In addition to deals on Maryland to Santos Dumont flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Maryland to Santos Dumont?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Maryland to Santos Dumont.
Can I find deals for business class flights from Maryland to Santos Dumont?
Yes. Cheapflights offers flight deals from Maryland to Santos Dumont by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$285+ Cheap flights from Maryland to Santos Dumont, Brazil (SDU)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Maryland to Santos Dumont with Cheapflights

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Cheap flight deals from Maryland to Santos Dumont

Keep the following information in mind while searching for Maryland to Santos Dumont flight deals. Data was last updated August 17, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Maryland to Santos Dumont

Cheapest flights from Maryland to Santos DumontExplore the most affordable flight options available from Maryland to Santos Dumont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2025.

Explore the most affordable flight options available from Maryland to Santos Dumont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Maryland to Rio de Janeiro Santos Dumont Airport that are best for you.

Best time to book a flight from Maryland to Santos Dumont

Have a flexible travel schedule? Discover the best time to fly to Santos Dumont from Maryland with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Maryland to Rio de Janeiro Santos Dumont Airport

Related info for your journey

Find useful and relevant information for your journey from Maryland to Santos Dumont. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the most popular routes from Maryland to Rio de Janeiro Santos Dumont Airport?

Can I find deals for flights from Maryland to Santos Dumont that include hotel bookings?

How can I find direct flights from Maryland to Santos Dumont?

Can I find deals for business class flights from Maryland to Santos Dumont?

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Cheapest flights from Maryland to Santos Dumont
Explore the most affordable flight options available from Maryland to Santos Dumont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2025.